Stal, Olle, John M. Carstensen, Sten Wingren, Lars Erik Rutqvist, Lambert Skoog, Claes Klintenberg, and Bo Nordenskjold. “Relationship of DNA Ploidy and S-Phase Fraction to Survival After First Recurrence of Breast Cancer”. Acta Oncologica 33, no. 4 (January 1, 1994): 423–429. Accessed May 16, 2026. https://medicaljournalssweden.se/actaoncologica/article/view/30675.